Home / 190,705.29-285,946.70-57,545.61

Finding the Fourth Proportional to 190,705.29, 285,946.70 and 57,545.61

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Solution

The fourth proportional to 190,705.29, 285,946.70 and 57,545.61 is: 86,284.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,705.29 : 285,946.70 = 57,545.61 : x
  2. Step 2: Convert to fraction form
    190,705.29/285,946.70 = 57,545.61/x
  3. Step 3: Cross multiply
    190,705.29x = 285,946.70 × 57,545.61
  4. Step 4: Simplify right side
    190,705.29x = 16,454,976,991.26
  5. Step 5: Solve for x
    x = 16,454,976,991.26/190,705.29
  6. Step 6: Final answer
    x = 86,284.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.